Some residents of Ocotillo feel they’ve been duped about the wind turbines. “I think there are more people now who are surprised and say, ‘Oh, I had no idea that they would be so huge,’ ” said Jim Pelley, who lives near the power plant. JOHN GIBBINS • U-T photos

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Some residents of Ocotillo feel they’ve been duped about the wind turbines. “I think there are more people now who are surprised and say, ‘Oh, I had no idea that they would be so huge,’ ” said Jim Pelley, who lives near the power plant. JOHN GIBBINS • U-T photos

A wind farm in the northern Sonora desert will deliver its first jolt of electricity to San Diego this week, opening up the flow of renewable energy across the Sunrise Powerlink. n The power plant at Ocotillo is one in a long line of utility-scale wind and solar projects made possible by the new 117-mile transmission line leading from Coastal California into the Imperial Valley.

A federal tax credit that expires at the end of the year hastened construction of the wind plant, which is just over an hour’s drive from the California coast. The credit can offset as much as one-third of development costs.

“This project is a viable project even without (the tax credit), but we are working to maximize our benefits,” said Joan Inlow, construction project manager for Bay Area-based wind developer Pattern Energy.

Pattern expects to have at least 86 turbines out of 112 at Ocotillo generating power this week. Spread across 19 square miles of desert leased by the Bureau of Land Management, the turbines nearly encircle Ocotillo, a town of fewer than 300 year-round occupants.

Many here objected to sacrificing desert vistas and a sense of solitude to the project, also fearing the repercussions for wildlife. Several lawsuits have failed to halt the turbines, as construction workers poured into Ocotillo’s trailer parks and rental units with the start of construction in May.

Jim Pelley, whose home borders the power plant, feels the town was deceived.

“I think there are more people now who are surprised and say, ‘Oh, I had no idea that they would be so huge,’ ” he said.

Kathleen Thayer, a 59-year-old Ocotillo resident and off-and-on real estate agent, said the visual transformation is dramatic, but insists few people are looking back.

“They’re awesome. They just change the landscape,” said Thayer, who gratefully took a temporary office job with the main construction contractor. “The comment I hear most of the time is that it’s progress. It’s green energy and we’d much rather have that than something that’s not green.”

Interstate 8, on its way from San Diego to Yuma, provides a panoramic view of the Ocotillo turbines. Up close, the towers dwarf trucks, railroad and even the high lattices for transmission lines that run past Ocotillo. The Fiberglas rotor blades soar 440 feet into the air.

The turbines were purchased from the German industrial group Siemens, but the major components were manufactured in the U.S. The blades were delivered by rail to El Centro from manufacturing facilities in Iowa, and the nacelles, a generator and gearbox enclosure at the rotor hub, from Kansas.

At full tilt, Ocotillo Wind has the capacity to produce 265 megawatts of electricity, enough to power as many as 125,000 homes. That’s about one-fourth the output of one reactor at either of California’s nuclear plants.

The price of the power, under a 20-year contract with San Diego Gas & Electric, has not been disclosed publicly, under state regulations designed to protect competition.

Across the country, the wind industry is shifting into a holding pattern with the expiration of the production tax credit at year’s end. Talk of an extension has been sidelined as Washington grapples with broader tax and spending deadlines.

That uncertainty has been offset by federal efforts to accelerate wind project siting and permitting, while streamlining the process for development on public lands for projects that resemble Ocotillo Wind.

After years of studying the local meteorology at Ocotillo, developer and investors are banking that there will be enough wind to turn a profit.

“In the end, we are taking a risk that there will be wind here, before people purchase it and we can sell it,” Inlow said.